NHTSA ID Number: 10177129
Manufacturer Communication Number: 20-FL-006H
TSB/Document Date: 2020-07-08
Summary
This bulletin provides information related to the Engine Control Module (ECM) software logic update for DTC P0300-P0304 Misfire. This update addresses an incident of intermittent misfire that may only occur at cold engine warmup.
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
- Advanced VCI Box, Industry-leading J2534 Pass-Thru...
- High-Speed OEM-Level Diagnostics & Programming: Unlock true...
- Coverage for 17 Car Brands & Ultra Reliability: Works...
- User-Friendly RLink Platform & Expert Support: TOPDON’s...
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J...
This product presentation was made with AAWP plugin.
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: 20-FL-006H
Replacement Service Bulletin Number:
MFR Communication Date: 2020-06-09
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
GROUP
NUMBER
FUEL SYSTEM
DATE
Technical Service Bulletin
20-FL-006H
MODEL(S)
JUNE 2020
Kona (OS) 2.0L
Veloster (JS) 2.0L
ECM UPDATE FOR KONA/VELOSTER 2.0L P030X MISFIRE
SUBJECT:
Description:
This bulletin provides information related to the Engine Control Module (ECM) software logic update
for DTC P0300-P0304 Misfire. This update addresses an incident of intermittent misfire that may only
occur at cold engine warmup.
Applicable Vehicle:
2018-2020 Kona (OS) with 2.0L GDI engine.
2019 Veloster (JS) with 2.0L GDI engine.
GDS Information:
System Selection: Engine (ECM)
Event #
Description
597*
OS 2.0 MPI P030X DTC IMPROVEMENT
598*
JS 2.0 MPI P030X DTC IMPROVEMENT
*or any later updated event that comes up.
Warranty Information:
Model
Kona (OS)
Veloster(JS)
Op Code
39171F07
Operation
ECM UPGRADE
Op Time
Causal
Part
Nature
Code
Causal
Code
0.3 M/H
39171-2ES** (OS)
39173-2ES** (OS)
39171-2EJ** (JS)
39173-2EJ** (JS)
39175-2EJ** (JS)
39177-2EJ** (JS)
I3T
ZZ3
**Refer to applicable parts catalog for full ECM causal part numbers.
Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
ECM UPDATE FOR KONA/VELOSTER 2.0L P030X MISFIRE
SUBJECT:
:
NOTICE
You must initially perform the GDS ECU Update in Auto Mode.
If the ECU Update starts but then fails in Auto Mode, perform the update in Manual Mode to
recover.
!
WARNING
GDS Vehicle Battery Voltage Warning:
If voltage is below 12 volts as per the below GDS warning, then select Back and
operate the vehicle in Ready mode for at least 20 minutes to ensure an adequate
battery state of charge for reliable update results. Turn ignition back on, and then retry
the ECU update again.
Service Procedure:
1. Perform GDS software update:
Refer to TSB 15-GI-001 for the detailed tablet-based Mobile GDS ECU update
procedures.
Refer to TSB 15-GI-002 for the detailed PC-based GDS ECU update
procedures.
2. Check for Diagnostic Trouble Codes in the ALL menus and erase any DTC.
3. Confirm normal vehicle operation.
TSB #: 20-FL-006H
Page 2 of 4
SUBJECT:
ECM UPDATE FOR KONA/VELOSTER 2.0L P030X MISFIRE
SUBJECT:
ROM ID Table:
# 597.OS 2.0 MPI P030X DTC IMPROVEMENT:
VEHICLE
18MY
Kona (OS)
IMMO
ECU P/N
ULEV
+IMMO
39171-2ESE0
ULEV
+IMMO
39171-2ESJ0
ULEV
-IMMO
39173-2ESE0
ULEV
-IMMO
39173-2ESJ0
ULEV
+IMMO
39171-2ESE1
ULEV
+IMMO
39171-2ESJ1
ULEV
-IMMO
39173-2ESE1
ULEV
-IMMO
39173-2ESJ1
6AT
2.0L
19MY
6AT
ROM ID
OLD
OS8UPAAS690A
OS8UPAAS69AA
OS8UPAAS69BA
OS8UPAAF69EA
OS8UPBAS690A
OS8UPBAS69AA
OS8UPBAS69BA
OS8UPBAF69EA
OS8UPAUS690A
OS8UPAUS69AA
OS8UPAUS69BA
OS8UPAUF69EA
OS8UPBUS690A
OS8UPBUS69AA
OS8UPBUS69BA
OS8UPBUF69EA
OS9UPAAS694A
OS9UPAAS695A
OS9UPBAS694A
OS9UPBAS695A
OS9UPAUS694A
OS9UPAUS695A
NEW
OS8UPAAF69EB
OS8UPBAF69EB
OS8UPAUF69EB
OS8UPBUF69EB
OS9UPAAF698A
OS9UPBAF698A
OS9UPAUF698A
OS9UPBUS694A
OS9UPBUF698A
OS9UPBUS695A
# 598.JS 2.0 MPI P030X DTC IMPROVEMENT:
VEHICLE
ULEV
IMMO
ECU P/N
+IMMO
39175-2EJW0
6MT
ULEV
Veloster (JS) 2.0L
-IMMO
+IMMO
-IMMO
NEW
JS9UP2CF69EB
39177-2EJW0
JS9UP2VF69EB
39171-2EJW0
JS9UP2AS69CA
JS9UP2AS69DA
JS9UP2AS69DB
JS9UP2AF69EA
JS9UP2AF69EB
39173-2EJW0
JS9UP2US69CA
JS9UP2US69DA
JS9UP2US69DB
JS9UP2UF69EA
JS9UP2UF69EB
6AT
ULEV
OLD
JS9UP2CS69CA
JS9UP2CS69DA
JS9UP2CS69DB
JS9UP2CF69EA
JS9UP2VS69CA
JS9UP2VS69DA
JS9UP2VS69DB
JS9UP2VF69EA
19MY
ULEV
ROM ID
NOTE: -IMMO=Key start, +IMMO=SSB
TSB #: 20-FL-006H
Page 3 of 4
SUBJECT:
ECM UPDATE FOR KONA/VELOSTER 2.0L P030X MISFIRE
SUBJECT:
:
Manual Mode Password:
# 597.OS 2.0 MPI P030X DTC IMPROVEMENT:
MENU
PASSWORD
OS 2.0 MPI 6AT -IMMO 39173-2ESE0
OS 2.0 MPI 6AT -IMMO 39173-2ESJ0
OS 2.0 MPI 6AT -IMMO 39173-2ESE1
OS 2.0 MPI 6AT -IMMO 39173-2ESJ1
OS 2.0 MPI 6AT +IMMO 39171-2ESE0
OS 2.0 MPI 6AT +IMMO 39171-2ESJ0
OS 2.0 MPI 6AT +IMMO 39171-2ESE1
OS 2.0 MPI 6AT +IMMO 39171-2ESJ1
7320
7321
7322
7323
7120
7121
7122
7123
# 598.JS 2.0 MPI P030X DTC IMPROVEMENT:
MENU
PASSWORD
JS 2.0 MPI 6MT -IMMO 39177-2EJW0
JS 2.0 MPI 6AT -IMMO 39173-2EJW0
JS 2.0 MPI 6MT +IMMO 39175-2EJW0
JS 2.0 MPI 6AT +IMMO 39171-2EJW0
7720
7320
7520
7120
NOTE: -IMMO=Key start, +IMMO=SSB
TSB #: 20-FL-006H
Page 4 of 4
SUBJECT:
- 💝【Questions? We’re Here Anytime】MK808S is a high-end flagship model that connects via wired OBD2 for faster, more stable, and reliable diagnosis compared to B,.T tools. If you have any questions about setup, activation, features, additional accessories, or update subscriptions, please reach us and we will respond promptly to assist you. It includes 1-Year F.ree Updates (124.5 bucks/year after), and most functions still work after expiration except a few online features. Please note some functions like full TPMS are not supported, reach us for model recommendations.
- 🔥🔥🔥【2026 NEWLY RELEASED BI-DIRECTIONAL CONTROL】As the 2026 upgraded version of MaxiChek MX808 MaxiDiag MD909 Pro MD906 Pro, our Newest MK808S auto diagnostic scanner for all cars inherits the powerful Bi-directional Control which makes it the most cost-effective scanner (without breaking the bank, same as MK900BT MS906 PRO MS906MAX). Active test is widely used on car subsystems to help you check if the car actuators are all in good condition. Such as windows, rear mirrors, sunroof, wipers...
- 【28+ MOST POPULAR RESET SERVICE FOR 150 MAKES】Autel versatile OBDII scanenr MK808S, full level-up of MX808, work as MX900, MK900, MK900-BT, supports 150+ car brands worldwide. Like the OBD2 code reader MaxiCOM MK808BT Pro, MK808S is equipped with 28+ hot services including 0il Reset, SAS Calibration, ABS Bleeding, Battery Registration, etc. MK808S ranks top in professional automotive tablets and keeps updating to support more newer modes from 2025 to 2026.
- 【ALL SYSTEM DIAGNOSTICS, FACTORY-LEVEL SCANNER】The MK808S dealer-level scanner, like Snap-on tools, effectively works all cars for all system diagnostics. It reads/clears codes, displays 5-in-1 Live Data, performs active tests, and special functions for all available modules. With a few clicks, you can easily understand the vehicle's condition. The convenient Wi-Fi printing feature allows you to generate a detailed report, highlighting the exact nature of the problem.
- 【AUT0 SCAN & AUT0V1N, 10X FASTER】How much have you spent on car maintenance? Even a minor issue can take up a significant amount of time. The MK808S is designed to improve your work efficiency. With its Aut0V1N technology, you can check your car's make, model, and year information with just one click. The Aut0Scan feature automatically scans all of the vehicle's modules and detects any fault codes. Check Aut0V1N compatibility by reaching us at 📞1-833-436-5880. Available Mon-Fri, 9 AM-6 PM EST.
- 💯【Conta.ct us for Support Directly】If you met any issues about: Received a registered device/ Language Changing/ Function not Support/ Blueto-oth connector malfunction/ Subscription Renewal, please conta.ct us via 📞autelsupply @outlook. com🛣️, we will provide perfect solution for you. ⚠️Note: Autel MK900BT comes with 1-Year Free Software Update, most features will remain active after update subscription expires. For questions regarding updates or need more useful accessories, please conta.ct us via 📞autelsupply @outlook.com🛣️. 2. If you encounter Blueto-oth adapter VCI150 malfunction, please tell us 📞autelsupply @outlook. com🛣️, we will handle it promptly.
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW MODEL OF MK808S MK900 MX900 MK808BT MX808S】2026 newest Autel MK900BT retains all features of MK808S MX900 MX808S MK808Z MK808Z-BT MK808K-BT, while EXTRA added powerful functions (value 2000+ bucks). The Pro-level Autel MK900BT makes a big leaps: 28+➡40+, 50+➡3000+ Active Tests, 2026 NEW✅CAN FD & DOIP protocols ✅Pre&Post diagnostic report ✅WIFI Print ✅Auto VIN&Auto Scan 2.0 ✅Scan VIN/ License ✅Battery Test (Need purcha.se BT506). If found defect or us.ed, please conta-ct 📞autelsupply @outlook. com📞 get perf-ect solut.ion.
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS906 PRO】Differ from MS906BT MS906 MP808 MK808 MX808 MK808BT only 50 tests, Autel scanner MK900BT escaner automotriz professional offers 3000+ active tests, it can send command to ECUs & monitor actuators operation, quickly locating faulty components. Bidirectional scanning takes your diagnostics to the next level with menu lists 3000+ active tests, such as windows, rear mirrors, sunroof, wipers, fuel injector, coolant fans, radiator fan, AC clutch, coolant pump and more. Note: Functions are not available for all vehicles, please send vehicle VIN to us check compatibility.
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full level-up of OBD2 code reader MaxiCOM MK808S MK808 MK808Z MX808 MK808Z-BT with 28 service, Autel scan tool MK900BT/ MK900-BT offers 40+ maintenance service on 150+ brands 10,000 vehicles from 1996-2025-2026. Hottest Services like: Oil Reset, ABS Bleed, SAS Calibration, Injector Coding, SRS, Throttle Reset, Gearbox Reset, Battery Registration etc. Added 12+ advanced resets: rain slash light sensor reset, HVA.C/ SUS calibration etc. Welcome to send Vehicle Make>Model>Year>VIN>Functions you required to 📞autelsupply @ outlook . com📞 check compatibility.
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE/ AUTO VIN】2026 new release Autel MaxiCOM MK900-BT scan tool embodies all system diagnostic with its 8in display for all vehicles. Like Sna.p-on tools, it can perform ✔Read/Clear Codes✔Displays 5-in-1 Live Data✔Record & Playback Data✔Retrieve Info on all available systems like ABS ECM BCM SRS TCM etc. In addition to Auto VIN technology, Autel MK900BT adds Scan License/ Auto Scan 2.0 to identify vehicle’s VIN/ license, make, year, model, no need manual input; One-click WiFi Printing of Pre&Post comparison diagnostic reports, highlight root causes of problems.
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool supports Reading and Clearing DTCs, DTC Look Up, displaying Live Data, Freeze Frame & I/M Readiness, view vehicle information, etc., to figure out the root cause of the Check Engine Light (CEL) and turn it off, helping you catch any potential issues early and avoid excessive costs from unnecessary repairs.
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with 7 languages (English, French, Spanish, etc.) and various post-1996 OBD II protocol vehicles (Toyota
, Nissan, Honda, Ford, etc.), this OBD II scanner provides accurate and fast diagnosis for worldwide car owners. - 【FOR END USER & DIYERS】 This error code reader AL319 is “plug and play” and comes with an easy interface. Even if you’re not familiar with vehicle repair, you can quickly take control of this obd2 scanner, and get the information you want.
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check engine code reader features a patented One-Click I/M Readiness, TFT color display, built-in speaker, LED Indicator etc. The cable is long enough without being too long and getting in the way. No batteries are needed.
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the date of purchase and lifetime free update are offered by this Automobile OBDII scan tool. Welcome to contact us via Q&A, email, or hotline, and our after-sale-service team for technical support.
, This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API